Tubes
copyright 2008
Tracheobronchial Tree |
| 46351b03 tubes tracheobronchial tree trachea bronchus asynchronous dichotomy branch Davidoff MD Davidoff art |
 Tracheobronchial Tree |
| 32620b14.800b02p tree flower tracheobronchial tree trachea bronchi lung Davidoff tree Davidoff Art |
Tracheobronchial Tree |
| 32620c02.800 lung bronchus tracheobronchial tree airway tree the common vein applied biology Davidoff tree Davidoff art |
Beer Delivery |
| 78444p beer pipes tubes water Lucerne Switzerland August 2006 Davidoff photography |
| The coleus leaf |
| 69077b01 tubes coleus water magnification lens connections Davidoff photography |
Tubes of the Body |
| 32368 Davidoff MD |
| Blood Supply of the Pancreas |
| 24879b01 Davidoff MD |
| Tree of Knowledge |
| 45857nao 04.800 Davidoff art |
| Boston – River to Ocean |
| 11537 River sea Atlantic ocean from the air Davidoff photography |
| Bifurcation of the Tree |
| 13212 Davidoff photography |
| Aortic Bifurcation |
| Davidoff MD 26968 |
| Trees in Chicago |
| This is a photo taken near Lake Michigan at the end of the Fall in Chicago showing the illuminated base of the naked trees. The dichotomous branching is reminiscent of the tracheal branching into the two mainstem bronchi. Turn them upside down and the similarity is remarkable. Davidoff photography 22153c02 |
Chimney from the Underground |
| Smoke in New York city Courtesy Ashley Davidoff code accessory interesting chimney tube smoke New York 2001p |
Single Kidney Tree |
| 46535b05.800 tree aorta spleen kidney liver single kidney tree Davidoff art Davidoff tree |
The Color Purple |
| 69078b01 tubes pansy flower the Color Purple connections Davidoff photography |
Almost Parallel |
| 69074b01 tubes parallel water Davidoff photography |
Cauda Equina – almost parallel nerves |
| 46522.800 spinal cord cauda equina nerves anatomy applied biology normal Davidoff MD |
Artery |
| 46493b02 artery carotid brain blood supply tubes Davidoff MD |
The Flute – Laminar Flow |
| 60165 tubes flute man Boston obesity Davidoff photography |
Internal Carotid Artery |
| 46352b02 artery brain internal carotid artery branches Davidoff tree tubes MRI MRA Davidoff art normal anatomy |
| v
Cerebral Circulation |
| 46353b01 head brain blood supply internal carotid artery branches circle of Willis MRA 3D TOF Davidoff MD normal anatomy Davidoff art |
The Fallopian Tubes |
| Gracile 46376b01b01b05 Davidoff MD |
Occluded Left Fallopian Tube Following Ectopic Pregnancy |
| 75792c01 32 year old femalehistory of left sided ectopic pregnancy destruction and iatrogenic change in left Fallopian tube normal uterys normal right Fallopian tube spillage into the peritoneal cavity hysterosalpingogram Courtesy Ashley DAvidoff MD 75791 75791c01 75791c03 75792c01 |
Biliary Tree |
| 46411b10.800 Davidoff art |
| Seasons of the Biliary Tree |
| 46411c02.800 Davidoff art |
Night in the Biliary Tree – The Work Goes On |
| 46411b13.800 Davidoff art |
| Colon |
| 12005b07 Davidoff art |
| Junction of Large bowel with Small Bowel |
| 32525d02.800 Davidoff art |
| Veins |
| 10392.800 Davidoff MD |
| Pancreatic Duct, Bile Duct, Duoudenum |
| 22391 R W4 Courtesy Ashley Davidoff MD |
| Penny Whistle Man – South African Miner |
| A miner in South Africa enjoying the penny whistle. Courtesy Ashley Davidoff MD. 10391 |
Tubes in Disease
Achalasia |
| 46561c01.800 esophagus stomach gastroesophageal junction fx enlarged esophagus megaesophagus fx dilated fx narrowing at the GE junction fx stenosis dx achalasia CTscan Davidoff MD |
Normal and Abnormal |
| 46561c02.800 esophagus size normal dilated enlarged dx achalasia obstruction proximal dilation CTscan Davidoff MD |
Factory Waste |
| 84311p.800 chimney brick factory Cambridge MAssachusetts tube waste Davidoff MD Davidoff photography |
Aorta and Circulation |
| The heart and lungs are positioned at the centre of all the organs in the body and they are understandably considered vital organs. Think of yourself as a little red cell within the vast and powerful environment of the circulatory system. Listen and feel the power of the pulse and the rush of all the rivers going back and forth, hither and thither, and around and around – imagine what goes on inside the system all the time – it is probably like walking through a rain forest with huge waterfalls, winding rivers and rivulets – a mixture of gushing power and calm meandering flow- but the colors are reds and blues instead of greens and yellows! Courtesy Ashley Davidoff MD 32059 code cardiac heart circulation artery vein introduction drawing Davidoff art |
Aorta and Circulation |
| The heart and lungs are positioned at the centre of all the organs in the body and they are understandably considered vital organs. Think of yourself as a little red cell within the vast and powerful environment of the circulatory system. Listen and feel the power of the pulse and the rush of all the rivers going back and forth, hither and thither, and around and around – imagine what goes on inside the system all the time – it is probably like walking through a rain forest with huge waterfalls, winding rivers and rivulets – a mixture of gushing power and calm meandering flow- but the colors are reds and blues instead of greens and yellows! Courtesy Ashley Davidoff MD 32059d01 code cardiac heart circulation artery vein introduction drawing Davidoff art |
Red White and Blue |
| 39533 This image combines the coronal view with the axial view and reflects the intimate relationships that the adrenals have with the kidneys as well as the great vessels of the abdomen. They literally have their fingers on the pulse of the aorta (red overlay)and the inferior vena cava (IVC) (blue overlay) code adrenal kidney relations anatomy Davidoff art |
End Point of the Arterial Circulation is at the Capillaries and is also the Beginning of the Venous Circulation |
| 32368b05.800 cardiovascular system heart cardiac artery arteries capillary capillaries arterioles venules veins negative firces positive forces road highway TCV the common vein applied biology Davidoff art Davidoff MD |
A Simple Tube |
|||
| 72845.800 aorta flow principles structure laminar flow turbulent flow normal Davidoff Art Courtesy Ashley Davidoff MD 72835.800 72839 72831.800 72845.800 49483b01
|
The aorta is curved in shape and elastic in nature while blood is not a simple fluid and hence special circumstances exist
Note the difference in the pressures between the left side of the circulation and the right. The left ventricular pressure reaches a systolic of 120mmHg, while the right atrial pressure is close to zero. This large difference allows blood to flow through the circulation. pressure principles |
| 49483b01 heart cardiac LV left ventricle aorta aortic systemic circulation capillary capillaries arterioles venules right atrium RA right ventricle RV normal physiology pressures hemodynamics Davidoff MD Davidoff art |
 Major Forces
A Pump, Elasticity, Peripheral Resistance and a Sump |
| 72839 Davidoff Art Courtesy Ashley Davidoff MD 72835.800 72839 72831.800 72845.800 49483b01 |
|
|
|
| This diagram reflects the laminar flow showing the almost parallel lines of flow that is characteristic of flow in the smaller tubes. Under resting conditions, laminar flow exists from the medium-sized bronchi onward down to the bronchioles. During exercise, the air flow is accelerated, and laminar flow may be confined only to the very small airways.
Courtesy Ashley Davidoff MD 42433b04.jpg |
Laminar flow
 Parabolic Flow – Highest Velocity in Center and Lowest on the Endothelium |
| 47678d05 aorta blood flow principles velocity parabolic Laminar flow is the normal condition for blood flow throughout most of the circulatory system. characterized by concentric layers of blood move in parallel down the length of a blood vessel. highest velocity (Vmax) isin the center of the vessel. lowest velocity (V=0) is along the vessel wall. T flow profile is parabolic occurs in long, straight blood vessels, under steady flow conditions. Davidoff art Courtesy Ashley Davidoff MD |
Parabolic Flow – Highest Velocity in Center and Lowest on the Endothelium |
| 47678f12.800
aorta blood flow principles velocity parabolic Laminar flow is the normal condition for blood flow throughout most of the circulatory system. characterized by concentric layers of blood move in parallel down the length of a blood vessel. highest velocity (Vmax) isin the center of the vessel. lowest velocity (V=0) is along the vessel wall. T flow profile is parabolic occurs in long, straight blood vessels, under steady flow conditions. Davidoff art Courtesy Ashley Davidoff MD
|
 Turbulent flow |
| This drawing shows the lines and circles of noisy turbulent flow, which is characteristic of flow in the larger airways.
Courtesy of Ashley Davidoff M.D. 42434b07 |